/*
 * @Autor: zengy
 * @Date: 2021-04-23 11:04:43
 * @LastEditors: zengy
 * @LastEditTime: 2021-04-23 13:47:45
 * @Description:uuid
 * @FilePath: \vite\src\utils\uuid.js
 */
/**
 * 生成uuid
 * @param {Number} len 长度
 * @param {Number} radix 基数
 * @returns {String} uuid
 */

function uuid2(len = 32, radix = 16) {
    let chars = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'.split('');
    let uuid = [],
        i;
    radix = radix || chars.length;
    if (len) {
        for (i = 0; i < len; i++) uuid[i] = chars[0 | Math.random() * radix];
    } else {
        let r;
        uuid[8] = uuid[13] = uuid[18] = uuid[23] = '-';
        uuid[14] = '4';
        for (i = 0; i < 36; i++) {
            if (!uuid[i]) {
                r = 0 | Math.random() * 16;
                uuid[i] = chars[(i == 19) ? (r & 0x3) | 0x8 : r];
            }
        }
    }

    return uuid.join('');
}

export default uuid2;
